Helmut Gustav Friedrich Qualtinger (; 8 October 1928 – 29 September 1986; also spelled Helmuth Qualtinger) was an Austrian actor, cabaret performer, writer and reciter. Biography Qualtinger was born
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f1bfc204cdb80db284c623623ed2f631c63b7ce398d08bf023d1d486e2777b. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad56c566-a80f-4d43-853a-efd0292e935c.json and https://artists.proofprofile.net/proofs/artist/ad56c566-a80f-4d43-853a-efd0292e935c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1172ad126478a29200bac4842e1329525ea37bd8dc6092cc6a3404b46d65baaa. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATA018400450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a21dc53d446d38e637fc183ab7426293943ae6b11234f6bcd2079b1c1232ddf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATF078101440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42de49c6b938062507977813b7cfbb3dbbc717d8fdc0e076e591b6cfb6edd0a3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF078002590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb21a390d748f9df96e2ba261f31bc12d14115b1f9d7f6c02307903c21f816e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATE068900060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec37206aa525d7a6a53918c0bd44482cfda4cb02a4c92705e793b3df16c9efb8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF067803320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c64f423ea99e6bb06788e0539356d2632fcdadf2fce882cfce74c73999ac8ef. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATUM71001403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd96f71863e5cbfecd09fd912ea52a4d2ca6b37373addb3621d5c6eb106863f4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATAI71300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1717045ab4196acd76f15724da8291f3ea5c269889b8ecf043704ec676b99d28. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATAI71700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2529714a43aba2510f7dc1d13d20ddf2569994acfdb6426e59edb3841b81d5fb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATF069300310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d1eaa6f2c5821c88c3505fd7d86cb4cf9ad96fb426d312852c4509ac67a016. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF067105670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162fa280f02f2363df077130e9c34c2657ea7ed7f2c692ac7f5549e6f8e63f41. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATF069300340.
Österreichisches Lesebuch - Helmut Qualtinger liest Anton Kuh
Mit Fremden Federn - Helmut Qualtinger liest Robert Neumann
Gerhard Aberle war in Stehkneipen - Gespräche an der Theke mit H
Ka Stadt zum leben - ka Stadt zum sterben
Moritaten oder das Morden höret nimmer auf
Das Beste vom Besten des Wiener Kabaretts (Vol.1)
Der Qualtinger - Ein kabarettistisches Porträt
Wie man verschieden Geräusche erzeugen kann
Die Abenteuer des braven Soldaten Schwejk
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c300f45563ca6055d6a49af675329afea7dab8296be7724a5f3d3125f8d8f2b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP138810204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea0779232f71c626dd9910c2e4e31df11f350354e6327dbb66cb8d081599154. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP139006501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d46ddcfdac77d29b28567259c2d3f0888a9702009e986a8c81544908b57ac79. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP139006502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdddd9b9d2051815f4473729837d06337ad53e3892d3f8cf8bd2d0c01ba89f3a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP139006508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ddfac82b9b55281882ce580ad5ea7ebd5a07ad4af49a0d0299b17fe1c5ecbf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP139006509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2313db17a50116d33b26ad92ef06e398ba32f0e1c6a41e2c5f9cba8714ae56ae. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP139006511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dac7351e6c00e7f8c2a6327f803f8e21e9a37cff1dabb55a7e00fc8dc1a322a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP139006516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54d5aecf90553d287f869080986e7590c7b2e1be102738118fbc7866c12263c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP139006517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eaf52adcecbe5f1063ba0d3a20263f49cf981545daefc2f042750ac4c2c347a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP139631201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5fef6fe5c7be85d14de0a06ae6612d41308c33983608e4b43c1d9584c4dc23. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP139631203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8a663ec9872736e3bd69775320fab7c52bb7dfb9aa556994c7c047dc0fb3af. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP139631206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08e15c38f9375706c8eca457651919eb78df9b80afa6b5988b2344645e130e5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP139631212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb658b7662ade897cb116546a8bb18b972f609865594b6b7fcad812dcc3988d. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP139631213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340804d4ad8b1f18910ebfa6cac5a4927491e447ac84f34db8b781edcf9f861b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP138922402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0043748b087b8d09b8179842c50a7130f33e3f0d22f12c1f2ac5cfa831127ce. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP138922409.
Deutsche Bündnispolitik nach dem Kriege (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9472cf354ae3a17a402d323a5dd6215f766d70165ae85c1cf800de0d993921dd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP138922412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcd834310c7a8f56a3862d5280068f7607465c23783cc9d84401b899217a85e. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:26:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP138922401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5b429153016fdea22a2aa22a04895bae65a21b9cec7654ad2b1d94b04f496e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATF069300270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda90e4f3fa341970935328040e950bc462d72fa38b2af334c722cf21a64c075e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATF069300280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2529714a43aba2510f7dc1d13d20ddf2569994acfdb6426e59edb3841b81d5fb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATF069300310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0ceee3bd68223245818f71fb53b690d283f4caa496a11830265d80a90725bd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATF069300320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162fa280f02f2363df077130e9c34c2657ea7ed7f2c692ac7f5549e6f8e63f41. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATF069300340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a79f50e6f612c8e9224a29546489d1b90c7ced11e2bebea0b154d90af1790c8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATF069300350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3219aab608adc8ffafdcc3686dbe254626b408c8799256e62c0f82f6a0873dd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATF069300360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500469920e5d6f818357ed0a00d54c1e41f0a1359273ba91dac2e82ebf72ccab. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATA017100130.
28. Juni 1914 - Die letzten Tage der Menschheit - Vorspiel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d91df8750ea2829873b1449e09aabb4ef76d51dbdef2aac9f09fc0e17d7e229. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATF078000720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f26f7d965adc250cbd0b2f7e787a7c6e3493dbdee743f7198e7962e42ed8510. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATF069300470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b58f75c5c8058f1994daa18aeff8f08e0d80f6dbc0791959116c96d54493d02. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATE064100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde32d50451c46a9d40e5691d6bb7abe493785585a9d1c48277c81ca6f8f557e1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATF069300370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da72ed968df1b8e854f03796e1544218dc49371e5c950b14d416501128f2027. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATF069300500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a49f8f71a48af399d98d9cc0a53624b6bc658c63ce4646bd6d88c949c5fb36c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATE066100010.